SebastianVerified account

Reading class-based code in JavaScript makes me want to weep. class AbstractBaseWhatever { someMethod() { throw new Error('Not implemented'); } } C'mon, man... do better!

Meanwhile... class TheChildClass extends AbstractBase { someMethod() { this.somethingElse(); } } Uh, wait ... where is this.somethingElse() defined?! Who knows! Time to hunt through the prototype chain!

How'd this any different from: const someFunction() { somethingElse()? } And you need polymorphism, you need to pass functions around which makes looking them up harder than instance methods.

I can go directly to the definition of somethingElse in this case. I know exactly where it is. It's night and day.

There could be plenty of indirection in the definition of somethingElse(): somethingElse = a.third.thing.bind(foo); Instance members are pretty trivial to look up. I do it every day.

What I mean by "indirection" is "how easy is it to open a file and find where somethingElse is defined?" In the case of instance methods, it's not obvious. In the case of regular functions, it is.